NAME

disnan.f -

SYNOPSIS


Functions/Subroutines


LOGICAL function disnan (DIN)
DISNAN tests input for NaN.

Function/Subroutine Documentation

LOGICAL function disnan (double precisionDIN)

DISNAN tests input for NaN.

Purpose:

 DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
 otherwise.  To be replaced by the Fortran 2003 intrinsic in the
 future.


 

Parameters:

DIN

          DIN is DOUBLE PRECISION
          Input to test for NaN.


 

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 60 of file disnan.f.

Author

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